I am trying to create a square foot below the base stair, but cannot seem to get the desired result. I can extend the stair below but I am getting a some odd triangle shape. below are screen shots from Revit and the desired result which quickly drew up in Acad show the square footing which I have hatched. I have tried with both pre-cast and cast in place. Am I missing something ? Any help appreciated
Desired result
Revit Output
